Walworth County, Wisconsin

Founding: 1839 (declared in 1836)
Parent county: Milwaukee
Namesake: Reuben Walworth, New York politician
Seat: Elkhorn (1839–)
Land area: 555 square miles
Population (2020): 106,478
Population (historic): 2,611 (1840); 26,496 (1860); 26,249 (1880); 29,259 (1900); 31,058 (1930)
Periods of population growth: pre-1840–1860; 1870–1910; 1920–2020
Subdivisions: Four cities; eight villages; eight CDPs; 16 towns
National Register listings: 54
Pre-1940 residences (estimated): 9,468 (17.9%)
Pre-1940 housing survival rate: 65.2%
Pre-1860 housing survival rate (1940): 15.4%

Farm housing in disrepair (1950): 3.7%

Nonfarm housing in disrepair (1950): 2.9%

Average farmhouse value (1930): $3,037
Average outbuilding value (1930): $3,720

Average farmhouse size (1940): 7.6 rooms
Number of farms (1920): 2,779
Average farm size (1920): 86.1 acres
Sources of settlement: New York, Ireland, Germany, England, Illinois, Vermont, and Norway
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Elkhorn

 
Namesake: Elkhorn Prairie
Founding: 1837 (post office); 1838 (platting); 1856 (incorporation)
Population (2020): 10,247
Population (historic): 1,081 (1860); 1,122 (1880); 1,731 (1900); 2,340 (1930)
Periods of population growth: 1838–1870; 1880–1900; 1910–2020
Pre-1940 residences (estimated): 802 (19.2%)
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Outstanding Buildings

1. *William Allen Farm (c. 1890). 1387 County Road B. Bloomfield. Eastlake.
2. *William Babcock Farm (c. 1870). 3725 Lawson School Road. Darien. Italianate.
3. *John Weld House (c. 1860). 8823 Nelson Road. LaGrange. Gothic Revival.
4. *Nikolaus Meyerhofer House (c. 1850). 6700 East Townline Road. Lyons.
5. *Ayers House (c. 1880). 6746 County Road DD. Spring Prairie. Italianate.
6. *William Wilson Farm (1888). 344 County Road JS. Spring Prairie. Queen Anne.
7. *Horace Loomis Farm (1851). 7297 State Route 120. Spring Prairie. Greek Revival.
8. *James Babcock Farm (c. 1855). 3456 Little Prairie Road. Troy. Greek Revival.
9. *Robert Rodman Farm (c. 1870). 6805 Beloit Road. Walworth. Italianate.
10. *Anson Warner Farm (1857). 9334 Warner Road. Whitewater. Italianate.